@incollection{,
	
					
					
					9D1E9FA2FD5E5EEE4DE7E0EFFFC72CF8
				,
	author={{SofianeMaachi} and {ibn khaldoune university}},
	journal={{Global Journal of Management and Business Research}},
	journal={{GJMBR}}2249-45880975-585310.34257/GJMBR,
	address={Cambridge, United States},
	publisher={Global Journals Organisation}1527186
}

@book{b0,
	
	
		,
	title={{Chams Eddine Ibrahim translation, institutes of university studies and publication Bairut}}
		
			,
	year={1989}
			P33
		
		
			Bernier wasmone
		
	
	,
	note={general economic principle}

}

@incollection{b1,
	
	
		,
	title={{Ahmed Mahmoud abedda, 1971, the foundations of general economics}}
	
	
		,
	journal={{Dar El-Maaref}}
		
			P102
		
	

}

@book{b2,
	
	
		,
	author={{
			LindaleMyrdal
		}}
		,
	title={{Two Swedish economists known}}
				
	

}

@incollection{b3,
	
	
		,
	title={{the world of modern book, science book home}}
		,
	author={{
			Al-HousinKhalef
		}}
	
	
		,
	booktitle={{General Finance}}
				Jordan
		
			,
	year={2008}
			P99
		
	
	,
	note={1st edition}

}